CN217159404U

CN217159404U - Large asynchronous motor fan-shaped rotor core folds and presses structure

Info

Publication number: CN217159404U
Application number: CN202221086155.8U
Authority: CN
Inventors: 王爱华
Original assignee: Shandong Beike New Energy Technology Co ltd
Current assignee: Shandong Beike New Energy Technology Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-09
Anticipated expiration: 2032-05-07

Abstract

The utility model relates to a rotor fanning strip technical field specifically is a fan-shaped rotor core of large-scale asynchronous machine folds and presses structure, the on-line screen storage device comprises a base, rotor fanning strip and ventilation frid, the top of base is provided with protruding type groove, the inside in protruding type groove is rotated and is connected with two-way screw rod, the equal threaded connection in outside left side and the outside right side of two-way screw rod has protruding type piece, two protruding type pieces all with protruding type groove sliding fit, the equal demountable installation in top of two protruding type pieces has splint, be connected with the center pin through extrusion mechanism on two splint, the outside of two center pins all overlaps and is equipped with the rotor clamping ring, the one end that two rotor clamping rings are relative all is provided with the rotor end plate, the outside that one side that two rotor end plates are relative is located two center pins all overlaps and is equipped with a plurality of rotor fanning strips and a plurality of ventilation frid. The utility model discloses avoided people to hold up the pin and fold the pressure to rotor fanning strip and ventilation frid, improved and folded the efficiency of pressing, improved the practicality of its use.

Description

Large asynchronous motor fan-shaped rotor core folds and presses structure

Technical Field

The utility model relates to a rotor fanning strip technical field specifically is a fan-shaped rotor core of large-scale asynchronous machine folds and presses structure.

Background

Large asynchronous machines are used when the rotor diameter exceeds 1200mm (or 1250 mm). Because of the limitation of the width size of the silicon steel sheet, the rotor iron core needs to be made into a fan-shaped lamination press-fitting structure, and the iron core after being stacked forms a circular ring shape.

Through retrieval, a utility model patent with the Chinese patent number of CN201020590993.X discloses a large asynchronous motor rotor fan-shaped piece laminating structure, which comprises a rotor fan-shaped piece, a tensioning screw, a pin, a rotor pressing ring, a rotor ventilation slot plate, a rotor end plate and an inclined key; it is spacing through a plurality of pins to rotor sector piece, stacks the in-process that presses to rotor sector piece, and people need insert a plurality of length pins in proper order to the pin downthehole, and the pin can drop sometimes, needs other people to hold up the pin, stacks the process of pressing and is more loaded down with trivial details relatively, has reduced and has stacked the efficiency of pressing.

Disclosure of Invention

Not enough to prior art, the utility model provides a fan-shaped rotor core of large-scale asynchronous machine folds and presses structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fan-shaped rotor core of large-scale asynchronous machine folds and presses structure, the on-line screen storage device comprises a base, rotor fanning strip and ventilation frid, the top of base is provided with protruding type groove, the inside in protruding type groove is rotated and is connected with two-way screw rod, the equal threaded connection in outside left side and the outside right side of two-way screw rod has protruding type piece, two protruding type pieces all with protruding type groove sliding fit, the equal demountable installation in top of two protruding type pieces has splint, be connected with the center pin through extrusion mechanism on two splint, the outside of two center pins all overlaps and is equipped with the rotor clamping ring, the one end that two rotor clamping rings are relative all is provided with the rotor end plate, the outside that one side that two rotor end plates are relative is located two center pins all overlaps and is equipped with a plurality of rotor fanning strips and a plurality of ventilation frid, a plurality of rotor fanning strips and a plurality of ventilation frid set up in turn. All be provided with a plurality of pinhole of wearing on two rotor end plates, a plurality of ventilation frid and a plurality of rotor fan-shaped piece, the equal threaded connection of one end that two rotor clamping rings are relative has a plurality of locating pins, and a plurality of locating pins insert the inside of a plurality of pinhole of wearing respectively, and a plurality of locating pins on two rotor clamping rings are crisscross to be set up, and the length sum of two locating pins is greater than rotor core's total length, and the length of single locating pin is less than rotor core's total length.

In order to facilitate the overlapping of the rotor fan-shaped sheets, a plurality of fixing holes are formed in the two rotor pressing rings, the two rotor end plates, the plurality of ventilation groove plates and the plurality of rotor fan-shaped sheets, a screw rod is inserted into the corresponding fixing holes, and nuts are connected to the two ends of the screw rod in a threaded mode.

For the inside slip of central axial spout, extrusion mechanism includes the fixed column, fixed column and splint fixed connection, and the inside of fixed column is provided with the spout, and it is provided with the slide to slide in the spout, and the one end that splint were kept away from to the slide is connected with compression spring, and the center pin extends to the inside one end of spout and the side fixed connection of slide, center pin and fixed column and splint sliding fit.

In order to rotate the bidirectional screw rod conveniently, the right end of the bidirectional screw rod extends to the right side of the base and is fixedly connected with a rotating handle.

In order to position the rotor fan-shaped pieces conveniently, a plurality of short pins are inserted into the inner parts of the pin through holes in positions corresponding to the positioning pins.

In order to insert the oblique keys, a plurality of key slots are arranged on the inner sides of the two rotor end plates, the plurality of ventilation groove plates and the plurality of rotor fan-shaped sheets.

Compared with the prior art, the utility model provides a large-scale asynchronous machine fan-shaped rotor core folds and presses structure possesses following beneficial effect:

this fan-shaped rotor core of large-scale asynchronous machine folds and presses structure, the length sum through two locating pins is greater than rotor core's total length, and the length of single locating pin is less than rotor core's total length, and the people of being convenient for overlap a plurality of rotor fanning strips and a plurality of ventilation frid on two center pins and a plurality of locating pins in proper order, has avoided people to hold up the pin and has folded and press rotor fanning strip and ventilation frid, has improved the efficiency of folding and pressing, has improved the practicality of its use.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic structural view of the screw nut of the present invention after laminating a plurality of rotor segments and a plurality of vent grooves;

fig. 4 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

The symbols in the figures illustrate:

1. a base; 2. a rotor segment; 3. a vent slot plate; 4. a bidirectional screw; 5. a convex block; 6. a splint; 7. a central shaft; 8. pressing a ring by a rotor; 9. a rotor end plate; 10. positioning pins; 11. a screw; 12. a nut; 13. fixing a column; 14. a slide plate; 15. a compression spring; 16. turning a handle; 17. a short pin; 18. a keyway.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a large asynchronous motor fan-shaped rotor core laminating structure comprises a base 1, a rotor fan-shaped sheet 2 and a ventilation groove plate 3, wherein a convex groove is formed in the top end of the base 1, a bidirectional screw rod 4 is rotatably connected inside the convex groove, convex blocks 5 are in threaded connection on the left side and the right side of the outside of the bidirectional screw rod 4, the two convex blocks 5 are in sliding fit with the convex groove, and a clamping plate 6 is detachably mounted at the top ends of the two convex blocks 5. The right-hand member of two-way screw rod 4 extends to the right side of base 1 and fixedly connected with changes 16, is convenient for rotate two-way screw rod 4, is convenient for adjust the distance between two splint 6 through rotating two-way screw rod 4. Be connected with center pin 7 through extrusion mechanism on two splint 6, extrusion mechanism includes fixed column 13, fixed column 13 and splint 6 fixed connection, and the inside of fixed column 13 is provided with the spout, slides in the spout and is provided with slide 14, and the one end that slide 14 kept away from splint 6 is connected with compression spring 15, through the middle removal of two splint of compression spring promotion central axis. Center pin 7 extends to the inside one end of spout and the side fixed connection of slide 14, and center pin 7 and fixed column 13 and splint 6 sliding fit, and the center pin 7 of being convenient for slides to the inside of spout, shortens two center pins 7 length in the middle of two splint 6, is convenient for fold to rotor core. The outer parts of two central shafts 7 are respectively sleeved with a rotor pressing ring 8, one end of each rotor pressing ring 8, which is opposite to each other, is provided with a rotor end plate 9, one side of each rotor end plate 9, which is opposite to each central shaft 7, is provided with a plurality of rotor fan-shaped sheets 2 and a plurality of ventilation groove plates 3, the plurality of rotor fan-shaped sheets 2 and the plurality of ventilation groove plates 3 are alternately arranged, the two rotor end plates 9, the plurality of ventilation groove plates 3 and the plurality of rotor fan-shaped sheets 2 are respectively provided with a plurality of through pin holes, one end of each rotor pressing ring 8, which is opposite to each rotor pressing ring 8, is in threaded connection with a plurality of positioning pins 10, the side end surfaces of the positioning pins 10 are flush with the side end surfaces of the central shafts 7, the plurality of positioning pins 10 are respectively inserted into the plurality of through pin holes, a plurality of short pins 17 are respectively inserted into the plurality of through pin holes at positions corresponding to the plurality of positioning pins 10, so as to position the plurality of rotor fan-shaped sheets 2, the plurality of positioning pins 10 on the two rotor pressing rings 8 are arranged in a staggered manner, the sum of the lengths of the two positioning pins 10 is greater than the total length of the rotor core, and the length of a single positioning pin 10 is less than the total length of the rotor core. The total length through two locating pins 10 is greater than rotor core's total length, and the length of single locating pin 10 is less than rotor core's total length, and the people of being convenient for overlap a plurality of rotor fan-shaped pieces 2 and a plurality of ventilation frid 3 on two center pins 7 and a plurality of locating pins 10 in proper order, have avoided people to hold the pin and have folded the pressure to rotor fan-shaped piece 2 and ventilation frid 3, have improved and have folded the efficiency of pressing, have improved the practicality of its use.

It should be further noted that a plurality of fixing holes are formed in the two rotor pressing rings 8, the two rotor end plates 9, the plurality of ventilation groove plates 3 and the plurality of rotor segments 2, a screw rod 11 is inserted into the corresponding plurality of fixing holes, and nuts 12 are connected to both ends of the screw rod 11 in a threaded manner. The plurality of rotor segments 2 and the plurality of vent grooves 3 are overlapped together through the screw nuts 12, and the plurality of key grooves 18 are arranged on the inner sides of the two rotor end plates 9, the plurality of vent grooves 3 and the plurality of rotor segments 2, so that the inclined keys can be conveniently inserted.

When the two-way screw rod type rotor clamping device is used, the two clamping plates 6 are moved to two sides of the base 1 by rotating the two-way screw rod 4, then the rotor pressing ring 8 is sleeved on the central shaft 7, the positioning pin 10 is screwed on the rotor sleeve, then the two rotor end plates 9 are respectively sleeved on the two central shafts 7 and the positioning pins 10, and then the corresponding number of the plurality of rotor fan-shaped sheets 2 and the plurality of vent groove plates 3 are alternately sleeved outside the two central shafts 7. Then, a corresponding number of short pins 17 are inserted into the corresponding pin holes according to the length of the rotor core, and then the two-way screw 4 is rotated to move the two convex blocks 5 and the two clamping plates 6 towards the middle, and the positioning pins 10 are respectively inserted into the pin holes on the opposite side multiple rotor segments 2 and multiple vent grooves 3, so that the multiple rotor segments 2 and the multiple vent grooves 3 are stacked. Then insert screw rod 11 to corresponding fixed orifices, with nut 12 spiral shell dress at the both ends of screw rod 11 to carry out the spiral shell tightly to nut 12, compress tightly the whole and fold the pressure structure and fix, dismantle a splint 6 at last, then take off the iron core that stacks, then hot beat the feather key, make the feather key insert to the inside of corresponding keyway 18.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fan-shaped rotor core of large-scale asynchronous machine folds and presses structure, includes base (1), rotor segment (2) and ventilation frid (3), its characterized in that: the top end of the base (1) is provided with a convex groove, the inside of the convex groove is rotationally connected with a two-way screw (4), the left side and the right side of the outside of the two-way screw (4) are both in threaded connection with convex blocks (5), the two convex blocks (5) are both in sliding fit with the convex groove, the top ends of the two convex blocks (5) are both detachably provided with clamping plates (6), the two clamping plates (6) are connected with central shafts (7) through extrusion mechanisms, the outsides of the two central shafts (7) are both sleeved with rotor pressing rings (8), one ends of the two rotor pressing rings (8) which are opposite are both provided with rotor end plates (9), one sides of the two rotor end plates (9) which are opposite to each other are both sleeved with a plurality of rotor fan-shaped sheets (2) and a plurality of ventilation groove plates (3), the plurality of rotor fan-shaped sheets (2) and the plurality of ventilation groove plates (3) are alternately arranged, two rotor end plates (9), all be provided with a plurality of pinhole of wearing on a plurality of ventilation frid (3) and a plurality of rotor fanning strip (2), the equal threaded connection of one end that two rotor clamping rings (8) are relative has a plurality of locating pins (10), a plurality of locating pins (10) insert respectively to the inside of a plurality of pinhole of wearing, a plurality of locating pins (10) on two rotor clamping rings (8) are crisscross to be set up, the length sum of two locating pins (10) is greater than rotor core's total length, and the length of single locating pin (10) is less than rotor core's total length.

2. The laminated structure of the large asynchronous motor fan-shaped rotor core according to claim 1, is characterized in that: two all be provided with a plurality of fixed orificess on rotor clamping ring (8), two rotor end plate (9), a plurality of ventilation frid (3) and a plurality of rotor fanning strip (2), the inside interlude of a plurality of corresponding fixed orificess has screw rod (11), and the equal threaded connection in both ends of screw rod (11) has nut (12).

3. The laminated structure of the large asynchronous motor fan-shaped rotor core according to claim 2, is characterized in that: the extrusion mechanism comprises a fixing column (13), the fixing column (13) is fixedly connected with a clamping plate (6), a sliding groove is formed in the fixing column (13), a sliding plate (14) is arranged in the sliding groove in a sliding mode, one end, far away from the clamping plate (6), of the sliding plate (14) is connected with a compression spring (15), the central shaft (7) extends to one end, far away from the sliding groove, of the inner portion of the sliding groove and is fixedly connected with the side end of the sliding plate (14), and the central shaft (7) is in sliding fit with the fixing column (13) and the clamping plate (6).

4. The laminated structure of the large asynchronous motor fan-shaped rotor core according to claim 3, is characterized in that: the right end of the bidirectional screw rod (4) extends to the right side of the base (1) and is fixedly connected with a rotating handle (16).

5. The lamination structure of the fan-shaped rotor core of the large asynchronous motor according to claim 4, is characterized in that: a plurality of short pins (17) are inserted into the pin through holes at positions corresponding to the positioning pins (10).

6. The laminated structure of the large asynchronous motor fan-shaped rotor core according to claim 5, is characterized in that: and a plurality of key grooves (18) are formed in the inner sides of the two rotor end plates (9), the plurality of ventilation groove plates (3) and the plurality of rotor fan-shaped sheets (2).